private void InitializeWindow()
{
lock (_syncRoot)
{
if (_window != null)
{
return;
}
_window = new NotificationsWindow(_positionProvider.ParentWindow);
_window.SetDisplayOptions(_displayOptions);
_window.MinHeight = _positionProvider.GetHeight();
_window.Height = _positionProvider.GetHeight();
_window.SetPosition(new Point(Double.NaN, Double.NaN));
_window.SetKeyboardEventHandler(_keyboardEventHandler);
}
}